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On-Line Laser Triangulation Scanner for Wood Logs Surface Geometry Measurement.

Piotr Siekański1, Krzysztof Magda2, Krzysztof Malowany3

  • 1Institute of Micromechanics and Photonics, Warsaw University of Technology, 8 Św. A. Boboli St., 02-525 Warsaw, Poland. p.siekanski@mchtr.pw.edu.pl.

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Summary

This study introduces an automated 3D scanning system for optimizing wood log cutting in sawmills. The system enhances wood plank manufacturing through intelligent positioning and precise geometry scanning.

Keywords:
calibrationlaser triangulation scannerwood logs geometry measurement

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Area of Science:

  • Forestry and Wood Science
  • Mechanical Engineering
  • Computer Vision and Robotics

Background:

  • Optimizing log cutting is crucial for efficient wood plank manufacturing.
  • Current methods may lack precision in capturing log geometry for intelligent processing.
  • The BIOSTRATEG project aims to enhance sawmill operations through advanced technology.

Purpose of the Study:

  • To present an automated on-line system for 3D geometry scanning of wood logs.
  • To enable intelligent positioning for optimizing log cutting in sawmills.
  • To improve the efficiency and yield of wood plank manufacturing.

Main Methods:

  • Development of an automated system using 6 laser triangulation scanners.
  • Scanning of full wood logs with diameters from 250 mm to 500 mm and lengths up to 4000 mm.
  • Detailed description of scanner construction, measurement process, calibration, and data processing.

Main Results:

  • Successful implementation of an automated on-line 3D scanning system for wood logs.
  • Demonstration of the system's capability to scan logs within specified dimensions.
  • Visualization of the 3D surface geometry of logs and the resulting cant after cutting.

Conclusions:

  • The developed automated scanning system provides precise 3D geometry data for wood logs.
  • This technology facilitates intelligent positioning, optimizing the cutting process in sawmills.
  • The system contributes to enhanced efficiency and material utilization in wood plank production.